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Java > Open Source Codes > org > objectweb > openccm > explorer > CosTrading > gui > AbstractItemListener


1 /*===========================================================================
2
3 OpenCCM: The Open CORBA Component Model Platform
4 Copyright (C) 2000-2004 INRIA - USTL - LIFL - GOAL
5 Contact: openccm@objectweb.org
6
7 This library is free software; you can redistribute it and/or
8 modify it under the terms of the GNU Lesser General Public
9 License as published by the Free Software Foundation; either
10 version 2.1 of the License, or any later version.
11
12 This library is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 Lesser General Public License for more details.
16
17 You should have received a copy of the GNU Lesser General Public
18 License along with this library; if not, write to the Free Software
19 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
20 USA
21
22 Initial developer(s): Sylvain Leblanc.
23 Contributor(s): ______________________________________.
24
25 ===========================================================================*/
26
27 package org.objectweb.openccm.explorer.CosTrading.gui;
28
29 import org.omg.CosTrading.Admin;
30
31 /**
32  * An abstract class for any Item Listener which will perform a
33  * CosTrading admin action when an event occured.
34  *
35  * @author <a HREF="mailto:Sylvain.Leblanc@lifl.fr">Sylvain Leblanc</a>
36  * @version 0.1
37 */
38 public class AbstractItemListener implements java.awt.event.ItemListener JavaDoc {
39
40     // ==================================================================
41 //
42 // Internal state.
43 //
44 // ==================================================================
45
46     /** The CosTrading admin reference. */
47     protected Admin adm_;
48
49     // ==================================================================
50 //
51 // Constructors.
52 //
53 // ==================================================================
54
55     /**
56      * Default constructor.
57      *
58      * @param adm The CosTrading admin reference.
59      */
60     public AbstractItemListener(Admin adm) {adm_ = adm;}
61
62     // ==================================================================
63 //
64 // Internal methods.
65 //
66 // ==================================================================
67
68     /**
69      * Must be completed by the admin action to perform.
70      */
71     protected void doAdminAction(Object JavaDoc modified_item) {}
72
73     // ==================================================================
74 //
75 // Public methods.
76 //
77 // ==================================================================
78
79     public void itemStateChanged(java.awt.event.ItemEvent JavaDoc e) {
80         if (e.getStateChange() == java.awt.event.ItemEvent.SELECTED) doAdminAction(e.getItem());
81     }
82 }
83
84
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